Apparatus for bleaching liquids.



L. J. FORET.

APPARATUS FOR BLEACHING LIQUIDS.

APPLICATION FILED JAN-22 1916.

D m m e M Di 2 SHEETS-SHEET l- L. J. FORET.

APPARATUS FOR BLEACHING LIQUIDS.

APPLICATION FILED IAN-22. I916- PatenIed De0.12,1916.

tltlt LEE ar. rennin, or LOCKPORTLLOUISIANA.

APPARATTTS' FOB. BEE-AGEING LIQUIDS.-

iaoaaai.

Specification of Letters Patent.

Patented pee. is, rare.

Application filed January 212, 1916. Serial No. 73 559.

To all whom it may concern:

Be it known that T, LEE J. FORET, a citizen of the United States, residing at Lockport,- in the parish of Lafourche and State of Louisiana, have invented certain: new and useful Improvements in Apparatus for Bleaching Liquids; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in apparatus for bleaching liquids, and is more especiallyintended to provide suitable ap-- paratus in which the raw juice from sugar cane or sugar beets may be treated with sulfur dioxid (S0 or other gases.

My invention is especially intended to provide an improved device known as a sulfur box, in which the raw cane juice is treated with sulfur dioxid, and in which the juice is separated into finely divided sheets or sprays, and is thoroughly and efficiently exposed to the action of the bleaching gas} My invention is intended to provide a simple apparatus whiehflis not likely to get out of order, and in which the parts exposed to the action of the juice may be readily taken apart or put together for convenience of assembly or for; purposes of cleansing the same.

' My invention will be understood by refer ence to the accompanying drawings, 1n which the same parts are indicated by similar reference symbols throughout the several views;

Figure 1 shows a sectional elevation of the complete sulfur box with the pipes leading thereto and therefrom; 21s a plan view of the device shown in g. 1; Fig. 3

shows a section along the line 3 3 of Fig. 1, and looking down; Fig. 4 shows a section ,along the line of'Fig. 1, and looking down; Fig. 5 shows (the ball bearin' the upper end of the spi dle; and ig. 6

shows the ball bearing for he lower part of the spindle on which the rotating disks are mounted.

Q The sulfur box is'made' of a casing 1, pref erablycomposed of a series of cast 5801710115" flanged at each end,-as at 2, and connected together by bolts or rivets in any convenient way. On the interior of this casinga series of annular ribs 3 are provided, which be cast integral with the casing, or attache thereto, as preferred.

25. The sul for;

The lower end of the casing is closed by a bottofn casting 4, preferably funnel-shaped, as shown, and this casting is preferably prostufling box 10 in thevhead 9, and this head carries a spider 11 supporting the ball bearing 12 for the upper end of the spindle, above which ball bearing suitable means for rotating the spindle are provided. I have shown in Fig. 1 a pulley 13, indicated in dotted lines, but any other suitable means for rotating the spindle 8 may be adopted if desired. Secured to the spindle 8 are a series of disks 14, each provided" with collars :15 adapted to slip over the spindle 8, and'each collar is provided with a set screw 16,'by

means of which the disk is secured fast to the spindle 8f v Mounted on the annular ribs 3 on the in terior of the casing are a series of annular shelves 17, each preferably made in two parts, as shown in Figs. 3 and 4, for con- Venience of assembly. These shelves 17 res;

erably'project in toward the spindle beyond the outer edges of the disk 14 'above the.

same, as shown in lFigs. 1 and 3,v

The raw juice to. be treated 18 fed 1n through the main 18 controlled by the valve. 19, and is carried ofi through'the bottom' pipe 20, control1ed'by the valve 21. The sulfur 'dioxid, or other gas or gases, is'fed into the casing near the bottom by the, pipe 22, controlled by the valve 23, and escape through the fpipe 24c controlled by the valve ur st ve, or other source of sup ply of gas, (not s own).-is connected to the pipe 22. I

\ The operation of the device is as 'follows'z-The rawjuice coming through the:

'main 18 fa1ls onthe upper disk 14: and upon the upper shelf 17, and thence asses through the opening in this shelf 1 edtoward the centerto'f the next lower disk,

and falling on the shelf below it is deflect and falls on the disk 14: below, and, falling over like curtains of spray,

- oil when desired, by adjusting the set screws 16.

. er al disks is considerable,

where it is again thrown outward, The disks being in rapid rotation cause the juice to spread out in thin film-like sheets, and all parts of the juice are particularly exposed to the gases which are moving in the opposite direction to the liquid. By having the disks 14 of greater diameter than, or overlapping, the openings in the center of. the annular shelves 17, the juice is caused to follow a zig-zag course, which course is modified by liquid by the rotary disk from which it falls. Thus, a series of cylindrical, or umbrellaor thin layers of juice, are'formed, through which the gases pass, and by which the bleaching elements are absorbed; a

By having the shelves 17 made in halves and loosely mounted .on the annular ribs, as show they may be readily removed from the a hparatus When the disk above is removed, and these disks may be readily taken from 'or applied to the central spindle,

Since the weight of the juice onthe sevball bearings are v provided to reduce friction, the upper' one of which is especially effective in sustaining the weight on the spindle 8, and the parts carried thereby, and is not exposed to the corrosive effect of the bleaching agent, or the juice.- Having thus described my invention what I claim and desireto secure by Letters Patent of the United States is 1. An apparatus for bleaching beet juice, cylindrical cane and comprising a vertically-disposed caslng provided with a series'of the centrifugal force imparted to the annu1ar ribs on the interior thereof, and a series of annular shelves loosely mounted on said ribs, the said shelves being each formed of two semi-circular segments, a vertical spindle projecting down through the scenter of said casing and provided with a series of circular disks secured thereto, with means for supplying the liquid to be treated to the upper part of said casing and for conveying the treated liquid from the lower part of said casing, and means for supplying a'gaseous reagent to the lower part of said casing and for carrying off the waste gases from the upper part of said casing, substantially as described.

2. An apparatus for bleaching cane and beet juice comprising a vertically-disposed cylindrical casing provided with a series of annular ribs on the interior thereof, and a series of annular shelves mounted loosel on said ribs, the said shelves being eacii formed of two semi-circular segments, a vertical spindle projecting down through the center of said casin and provided with a series of circular dis rs secured to said spindle, said disks overlapping the inner edges of the annular shelves, means for rotating said spindle, means for supplying the liquid to betreat'ed to the upper part of said casing and forconveying the treated liquid from the lower part of saidcasing, and means for supplying a gaseous reagent to the lower part-of said casing and for carrying oil the Waste gases from the upper part of said casing, substantiallv as described.

In testimony whereof, I afiix my signa- LEE J. FORET.

' ture. 

